Some peculiarities of solar plasma flows from coronal holes

Details Some peculiarities of solar plasma flows from coronal holes Some peculiarities of solar plasma flows from coronal holes

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990p%26ss...38..459e&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 38, April 1990, p. 459-469.

Mathematics

16

Coronal Holes, Mathematical Models, Solar Wind, Approximation, Divergence, Laplace Equation, Magnetic Flux, Magnetohydrodynamic Flow, Solar Magnetic Field

Scientific paper

Using a method of calculating magnetic fields in the corona in the potential approximation and by comparing results of these calculations with analysis results on observational data, it is shown that: (1) for sufficiently stable coronal holes (CH), mean angular size Delta alpha-dependences of super-radial one-dimensional and two-dimensional divergences of magnetic tubes originating from coronal holes, are about the same for all types of CH; (2) deviations from curves result from the fact that the magnetic flux of the tube can, to a greater or lesser extent, be limited by the (surrounding it) neutral line (NL) loop or magnetic fluxes from neighboring CH; and (3) plasma flows from polar CH, whose boundary runs at latitudes above 60-70 deg, do not reach the earth's latitude.

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